TH7107

www.DataSheet4U.com TH7107 315/433MHz FSK/FM/ASK Transmitter Features ! Fully integrated, PLL-stabilized VCO ! Flexible frequency range from 310 MHz to 450 MHz ! FSK through crystal pulling allows modulation from DC to 20 kbit/s ! High FSK deviation possible for wideband data transmission ! ASK achieved by on/off keying of internal power amplifier ! FM possible with external varactor ! Wide power supply range from 2.2 V to 5.5 V ! High over-all frequency accuracy ! Very low standby current ! Adjustable output power range from -12 dBm to +2 dBm ! Adjustable current consumption from 4.8 mA to 11.5 mA ! FSK deviation and center frequency independently adjustable ! Differential output well-suited for loop antenna ! External clock available for µC drive, down to 1.9 V supply ! ”Clock only” mode ! Conforms to EN 300 220 and similar standard Ordering Information Part No. TH7107 Temperature Range -40 C° to 85 °C Package SOIC16 Application Examples ! ! ! ! ! Keyless car and central locking Low-power telemetry Alarm and security systems General digital data transmission General analog audio signal transmission Pin Description LF1 1 SUB 2 DATA 3 RO2 4 RO1 5 ENTX 6 ENCK 7 CKOUT 8 TH7107 16 LF2 15 VCC 14 VEE 13 OUT1 12 OUT2 11 VEE 10 VCC 9 PS 3901007107 Rev. 005 Page 1 of 14 Data Sheet Dec. 2001 TH7107 315/433MHz FSK/FM/ASK Transmitter General Description The TH7107 FSK/ASK/FM transmitter IC is designed for applications in the European 433MHz industrial-scientific-medical (ISM) ba...